Preheat oven to 350°F. Line a standard muffin tin with 6 liners, then coat liners with non-stick cooking spray.
Whisk together egg, oil, water and muffin mix. Fill each muffin cup ¾ full.
Bake until a toothpick inserted in the center comes out clean, 30–35 minutes. Let cool before serving.
12 Muffin Variation
Prepare as above, lining a standard muffin tin with 12 liners. Coat liners with non-stick cooking spray. Spoon batter evenly between the cups, then bake 25–30 minutes.
